ICON 9976 with Magnum Heads?

Link to slug?
Where does it sit in the bore?
Actual current compression ratio now with what head (cc) and gasket?
Current Magnum head cc is?
Actual bore size?
Best available octane for you is?
Cam specs @ .050 please.
Link to slug
SB Chrysler 360 Icon FHR Forged Pistons Flat Top 7cc 4.030 Bore IC9976-030
I don’t know yet where piston sits in the bore, it is a fresh and disassembled.
The gaskets are felpro 8553 stock replacements. Not sure on the compressed thickness as I can’t find a solid answer around .045?
Also don’t know magnum head cc haven’t preserved them yet. Most say stock are around 62cc?
Actual bore size is 4.030
Cam specs: Summit 6901 218 228 @50 if a different cam will be better I don’t mind getting something different.